1.
101 Battalion (South Africa)
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101 Battalion was a quick-reaction unit of the South West African Territorial Force. The South West Africa Territory Force, SWATF renumbered battalion numbers according to their positioning on the border. The prefix 10 pertained to battalions operating to the west of the Kavango River,20 to the Kavango or central region and 70 to the eastern region, under this system,35 Battalion was renamed 101 Battalion in 1980. Until 1980101 battalion was used is small teams attached to SADF units as trackers and interpreters, by 1981101 converted to a light infantry battalion. By 1983 at least 2700 men had been recruited and trained and these Companies concentrated on external operations and pursuit of infiltrators. Another two reaction force companies was activated, and a Reconnaissance Wing, by 1985101 Battalion fought under its own command instead of being detached to external units. 101 Battalion was disbanded upon the independence of Namibia in 1990-91, namibian War of Independence South African Border War Snyman, PHR. Helmoed-Romer Heitman, Paul Hannon, Modern African Wars, South-West Africa, Osprey Publishing ISBN 1-85532-122-X

2.
Reserve Police Battalion 101
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Reserve Police Battalion 101 was a Nazi German paramilitary formation of Ordnungspolizei, serving under the control of the SS by law. Formed in Hamburg, it was deployed in September 1939 along with the Wehrmacht army in the invasion of Poland, following the personnel change and retraining from May 1941 until June 1942, it became a major perpetrator of the Holocaust in occupied Poland. The Nazi German Order Police had grown to 244,500 men by mid-1940, after the German attack on the Soviet positions in Operation Barbarossa of 1941, the Order Police joined the SS Einsatzgruppen in the massacres of Jews behind the Wehrmacht lines. The shootings in Russia proper culminated in the Battalion 45 massacre of 33,000 Jews at Babi Yar, the Order Police battalions became indispensable in the implementation of the Final Solution after the Wannsee Conference of 1942. A total number of 17 police battalions were deployed by Orpo during the invasion of Poland in 1939, Battalion 101 was one of three from the city of Hamburg. After a few months of duty the battalion was transported from Kielce, Poland. Servicemen were tasked with organizing additional ground units, the expulsions of Poles along with kidnappings of Polish children for the purpose of Germanization, were managed by two German institutions, VoMi, and RKFDV under Heinrich Himmler. In settlements already cleared of their native Polish inhabitants, the new Volksdeutsche from Bessarabia, Romania, during the early period we endeavored to fetch all people out of the houses, without regard for whether they were old, sick, or small children. The commission quickly found fault with our procedures and they objected that we struggled under the burden of the old and sick. To be precise, they did not initially give us the order to them on the spot. — Bruno Probst For the next half-a-year beginning November 28,1940 the Police Battalion 101 guarded the new ghetto in Łódź crammed with 160,000 Jews eventually. Battalion 101 commanded by career policeman Major Wilhelm Trapp, returned to Hamburg in May 1941 and again, brand new battalions numbered 102,103 and 104 were formed by them and prepared for duty. Training of new reservists included deportation of 3,740 Hamburg, meanwhile, the killing of Jews from the Łódź Ghetto using gas vans began at Chełmno in December 1941. The Reserve Battalion 101 with three detachments of heavy machine-guns returned to occupied Poland in June 1942, composed of 500 men in their thirties who were too old for the regular army. By that time, the first two camps of Operation Reinhard in General Government – Bełżec and Sobibór – were already gassing trainloads of Jews from all over Europe. The most deadly of them, Treblinka, was about to start operations, globocnik gave Battalion 101 the task of deporting Jews from across Lublin reservation. Between mid-March and mid-April 1942, about 90% of the 40,000 prisoners of the Lublin Ghetto were loaded by Order Police and Schupo onto Holocaust trains destined for Bełżec extermination camp. Additional 11, 000–12,000 Jews were deported from ghettos in Izbica, Piaski, in Lubartów, Zamość, the first mass murder known to have been committed entirely by Battalion 101 was the most messy for lack of training, uniforms dripping wet with brain matter and blood

3.
101st Signal Battalion
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The 101st Signal Battalion, headquartered in Yonkers, New York, is an Echelons Above Corps Signal Unit of the New York Army National Guard. It is subordinate to the 53rd Troop Command, the mission of the 101st Signal Battalion is to provide and manage communications and information systems support for the command and control of combined arms forces. Signal support includes Network Operations and management of the electromagnetic spectrum, Signal support encompasses designing, installing, maintaining, and managing information networks, to include communications links, computers, and other components of local and wide area networks. Organized 6 December 1886 and 29 December 1894, in the New York National Guard at New York and Brooklyn, respectively, as the Provisional Signal Corps of the 1st and 2d Brigades. Following this, the units were restructured and on 11 November 1892, were designated the Provisional Signal and Telegraph Corps of the 1st and 2d Brigades, after three years, on 10 January 1895, they were redesignated as the 1st and 2d Signal Corps. Another restructuring occurred on 23 July 1903, becoming the 1st and 2d companies, following this, they consolidated on 7 February 1914, as the 1st Battalion, Signal Corps. Following this, they were called into service on 18 June 1916. They were redesignated as the 102d Field Signal Battalion and were assigned to the 27th Division on 1 October 1917 and they were demobilized on 31 March 1919 at Camp Upton, New York. After this, they consolidated with the 1st Battalion, Signal Corps, the consolidated unit reorganized into the New York National Guard as the 1st Battalion, Signal Corps, headquarters was recognized federally on 3 May 1921, in New York. The 1st Battalion, Signal Corps, was redesignated 1 June 1921 as the 101st Signal Battalion, inducted into federal service 13 January 1941 at home stations, furthermore deactivated 8 December 1945 at Camp Stoneman, California. The first battalion was reorganized and federally recognized 16 October 1947 with headquarters at Yonkers, after this, they were redesignated on 1 March 1950, as the 101st Signal Battalion. Meritorious Unit Commendation, Streamer embroidered KOREA, philippine Presidential Unit Citation, Streamer embroidered 17 October 1944 to 4 July 1945. Republic of Korea Presidential Unit Citation, Streamer embroidered KOREA

4.
Military organization
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Military organization or military organisation is the structuring of the armed forces of a state so as to offer military capability required by the national defense policy. In some countries paramilitary forces are included in an armed forces. Armed forces that are not a part of military or paramilitary organizations, such as insurgent forces, often mimic military organizations, the use of formalized ranks in a hierarchical structure came into widespread use with the Roman Army. These in turn manage Armed Services that themselves command combat, combat support and combat support formations. Within each departmental agency will be found administrative branches responsible for further agency business specialization work, in most countries the armed forces are divided into three or four Armed services, army, navy, and air force. Many countries have a variation on the model of three or four basic Armed Services. Some nations also organize their marines, special forces or strategic missile forces as independent armed services, a nations coast guard may also be an independent military branch of its military, although in many nations the coast guard is a law enforcement or civil agency. A number of countries have no navy, for geographical reasons, most smaller countries have a single organization that encompasses all armed forces employed by the country in question. Third-world armies tend to consist primarily of infantry, while first-world armies tend to have larger units manning expensive equipment and it is worthwhile to make mention of the term joint. In western militaries, a joint force is defined as a unit or formation comprising representation of power from two or more branches of the military. It is common, at least in the European and North American militaries, to refer to the blocks of a military as commands, formations. In a military context, a command is a collection of units and it is not uncommon for a nations services to each consist of their own command, but this does not preclude the existence of commands which are not service-based. A formation is defined by the US Department of Defense as two or more aircraft, ships, or units proceeding together under a commander. The formations only differ in their ability to achieve different scales of application of force to achieve different strategic, operational and tactical goals and it is a composite military organization that includes a mixture of integrated and operationally attached sub-units, and is usually combat-capable. Example of formations include, divisions, brigades, battalions, wings, formation may also refer to tactical formation, the physical arrangement or disposition of troops and weapons. Examples of formation in such usage include, pakfront, panzerkeil, testudo formation, any unit subordinate to another unit is considered its sub-unit or minor unit. It is not uncommon for unit and formation to be used synonymously in the United States, in Commonwealth practice, formation is not used for smaller organizations like battalions which are instead called units, and their constituent platoons or companies are referred to as sub-units. In the Commonwealth, formations are divisions, brigades, etc, different armed forces, and even different branches of service of the armed forces, may use the same name to denote different types of organizations

5.
101st Engineer Battalion
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The 101st Engineer Battalion is a branch of the Massachusetts National Guard and one of the oldest serving regiments of the United States Army. The 101st Engineer Battalion was originally established as the East Regiment, as the first muster was held on the green in Salem, Massachusetts, Salem is seen as the birthplace of the National Guard. On 13 December 1636, the Massachusetts General Court ordered the organization of three militia regiments designated as the North, South, and East regiments, the East Regiment provided protection and support to the Settlers of the Massachusetts Bay Colony for 139 years. It also fought in the Pequot Indian Wars, King Philips War, the 101st played a key role in the Revolutionary War. The same element helped the American cause to remain alive in December of 1776 during the Battle of Trenton and they manned the boats for General Washington to cross the Delaware. During the Civil War, three separate Regiments were established in Essex County, the 19th Massachusetts Volunteer Militia fought with the Army of the Potomac and had seven Medal of Honor Recipients. The 50th Massachusetts Volunteer Militia had port duty in Louisiana and had one Medal of Honor recipient, although the Battalion did not fight in the War with Spain, the Headquarters Company did. The Battalion was mobilized for World War I, however the Second and Eighth Massachusetts Militia were consolidated to form the 104th Infantry Regiment under the 26th Infantry Division. The remaining cadres were reorganized as the Fifth Pioneer Infantry, but was not deployed overseas, in 1920, the 5th Pioneer Infantry was re-designated the 101st Engineer Battalion and realigned under the 26th Yankee Division, where it would remain until the division was deactivated in 1993. From 1993 to 2006 the 101st Engineer Battalion was aligned under the 42nd Infantry Division, in 2006, HHC deployed to Kosovo as part of Task Force Falcon. In October 2008, the Battalion was placed under the new 26th Maneuver Enhancement Brigade, in June 2009 the Battalion mobilized for Operation Iraqi Freedom, providing Construction and Combat Engineer support to the Multi-National Division Baghdad/United States Division-Central area. For this, the Battalion earned a Meritorious Unit Commendation ribbon. S

6.
101st Battalion (Winnipeg Light Infantry), CEF
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The 101st Battalion, CEF, was an infantry battalion of the Great War Canadian Expeditionary Force. The battalion disbanded on 12 October 1917 and it was recruited in, and was mobilized at, Winnipeg, Manitoba. D. McLean from 28 June 1916 to 21 August 1916 and it was awarded the battle honour THE GREAT WAR1916. It, CEF, is perpetuated by the Royal Winnipeg Rifles

Inspection of the Reserve Police Battalion 101 at Łódź in occupied Poland, tasked upon arrival with service at the Litzmannstadt Ghetto

Expulsion from Warthegau. Poles led to cattle trains as part of the ethnic cleansing of western Poland, utilizing Battalion 101

Memorial in the forest of Winiarczykowa Góra near Józefów, southeast of Warsaw, commemorating the Jewish victims of the 1942 massacre committed by the Reserve Police Battalion 101. The inscription omits the name of the Nazi German formation

Mass graves of the Aktion Erntefest, the single largest German massacre of Jews in the entire war